Optimization of Remazol Brilliant Blue adsorption process from aqueous solutions using multi-walled carbon nanotube

Markadeh, A. Arab; Rezaee, Abbas; Rastegar, Seyed Omid; Hossini, Hooshyar; Ahmadi, Shahin; Hoseinzadeh, Edris

doi:10.1080/19443994.2015.1065442

Cited by 9 publications

(4 citation statements)

References 35 publications

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“…Hence, the linearized form of kinetic relations was employed. The linearized equations can represent the following (Equation (5)–(8)) (Arab Markadeh et al., 2016; Hossini et al., 2016; Moussavi et al., 2013) …”

Section: Resultsmentioning

confidence: 99%

Equilibrium and kinetics studies of Direct blue 71 adsorption from aqueous solutions using modified zeolite

Mirzaei

Mahvi

Hossini

2017

Adsorption Science & Technology

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This study deals with the application of Iranian zeolite as a low cost adsorbent for the removal of the Direct blue 71 (DB 71) from colored solution. Important parameters including equilibrium and contact time, initial dye concentration, effect of pH, and zeolite dosage were evaluated. Maximum dye removal was obtained at about 99.8% for 25 mg/L at 120 min of equilibrium. Higher adsorption efficiency of direct dye was obtained at higher dose and acidic pH. To analyze the adsorption equilibrium and kinetic, Langmuir, Freundlich, and Temkin isotherms as well as four kinetic models encompassing pseudo first-order, pseudo second-order, intraparticle diffusion, and Elovich were evaluated. The Langmuir isotherm (R 2 ¼ 0.995) and pseudo second-order models, gave the best fit to equilibrium experimental data. In Langmuir analysis, the maximum adsorption capacity (q m) by 13.66 mg/g was determined. Finally, the characteristics of zeolite including both natural and modified, such as compositions, surface morphology by X-ray diffraction technique (XRD), X-ray fluorescence (XRF), and scanning electron microscopy (SEM) were obtained. According to XRF analysis, it was

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Section: Resultsmentioning

confidence: 99%

Equilibrium and kinetics studies of Direct blue 71 adsorption from aqueous solutions using modified zeolite

Mirzaei

Mahvi

Hossini

2017

Adsorption Science & Technology

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“…Yan et al treated methylene blue dye by adsorption onto single‐walled carbon nanotubes and single‐walled carbon nanotubes modified with hydroxyl groups, confirming that charge‐transfer and hydrophobic interactions occurred during the adsorption process 49 . Markadeh et al optimized the removal of remazol brilliant blue onto multiwalled carbon and reported a removal efficiency of 69.06% and 1.1 × 10 −2 mM/g 50 . Shabaan et al investigated multiwall carbon nanotubes for adsorption of various dyes, including cationic and anionic dyes, and found removal percentages of 97.2% and 98.7%, respectively 47 .…”

Section: Introductionmentioning

confidence: 98%

“…49 Markadeh et al optimized the removal of remazol brilliant blue onto multiwalled carbon and reported a removal efficiency of 69.06% and 1.1 Â 10 À2 mM/g. 50 Shabaan et al investigated multiwall carbon nanotubes for adsorption of various dyes, including cationic and anionic dyes, and found removal percentages of 97.2% and 98.7%, respectively. 47 Qu et al…”

Section: Introductionmentioning

confidence: 99%

Effective biological treatment of water polluted with coomassie brilliant blue and methylene blue using carbon nanotube‐supported biodegradation

Kenawy

Shabaka

Abou-Zeid

et al. 2021

Env Prog and Sustain Energy

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This work was designed to improve bacterial biodegradation of coomassie brilliant blue and methylene blue dyes by applying carbon nanotubes to facilitate bacterial cell feeding for dyes biodegradation. A bacterial consortium and azobacter were investigated, and conditions for improved biodegradation were optimized. The methodology included; first stage activation of carbon nanotubes by pretreatment with nitric acid for 6 h, washing, and drying at 105°C. The second stage included optimization of biodegradation conditions, using 20 ml glass tubes containing 12 ml of nutrient broth media inoculated with 1 ml of the bacterial source samples. Coomassie brilliant blue or methylene blue (10 mg L−1) was added to the mixture, and the decolorization efficiency was evaluated over time. For the primary adaptation of the biodegradation process, the removal efficiencies for coomassie brilliant blue were 70.2% and 69.2% when using a sand consortium and azobacter, respectively, and for methylene blue they were 81.0% and 82.6% with a sand consortium and azobacter, respectively. The biodegradation process exhibited maximum efficiency at a temperature of 30°C with shaking at 150 rpm. After applying the carbon nanotubes, the removal efficiencies were improved and those for coomassie brilliant blue were 95% and 93% for the sand consortium and azobacter, respectively, and 96% and 99% for methylene blue with the sand consortium and azobacter, respectively.

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“…Currently, there have only been a few published studies using this material. These studies have included the removal of antibodies and integration of biotechnology and ND , and its application as an adsorbent to remove acid orange 7 , eosin Y , metanil yellow , methylene blue , and remazol brilliant blue . There has only been one study that examined the potential of ND as a photocatalyst .…”

Section: Introductionmentioning

confidence: 99%

The use of response surface methodology to determine governing factors driving a nanodiamond‐based wastewater treatment method

Butler

Mulamba

Webb

et al. 2018

Env Prog and Sustain Energy

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The purpose of this study was to determine and characterize the factors involved in the treatment of wastewater containing an azo dye, Congo red, using nanodiamond (ND). A Box Behnken study was developed by the authors that considered the dye wastewater dilution, catalyst dose, and light source. Statistical analysis, XRD, and SEM analysis confirmed that ND loses its effectiveness when the concentration is below 0.025 g/100 mL of Congo red. It was also determined that at these catalyst doses ND is primarily driven by adsorption, confirmed by observing high treatment efficiency within 30 min of each experimental run. While one cannot absolutely confirm this is the case at much higher doses of ND, it was clear that adsorption plays a major role in color removal by the carbon allotrope. An additional EDS analysis shows that ND specifically adsorbs of sodium, lead, chlorine, and sulfur from Congo red. © 2018 American Institute of Chemical Engineers Environ Prog, 38: 246–253, 2019

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Optimization of Remazol Brilliant Blue adsorption process from aqueous solutions using multi-walled carbon nanotube

Cited by 9 publications

References 35 publications

Equilibrium and kinetics studies of Direct blue 71 adsorption from aqueous solutions using modified zeolite

Equilibrium and kinetics studies of Direct blue 71 adsorption from aqueous solutions using modified zeolite

Effective biological treatment of water polluted with coomassie brilliant blue and methylene blue using carbon nanotube‐supported biodegradation

The use of response surface methodology to determine governing factors driving a nanodiamond‐based wastewater treatment method

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